Dustproof multi-stage air cylinder
By designing a dustproof multi-stage cylinder, the cylinder achieves graded retraction and effective dust prevention, solving the problem of dust adhesion in traditional cylinders. It is applicable to fields such as printing, semiconductors, automation control, and robotics.
Patent Information
- Application Number
- CN202520668573.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Traditional two-stage cylinders are prone to dust accumulation during extension and retraction, affecting operation, and cannot achieve staged retraction in special scenarios.
The design incorporates a multi-stage dustproof cylinder that extends in one step through the retractable rear air port and piston air port, and retracts in stages through the retractable front air port and first-stage front air port. It is also equipped with a first-stage and second-stage dustproof structure, using bristles to block dust.
It effectively prevents dust from entering the cylinder, ensuring that the cylinder works normally during extension and retraction, and adapts to the needs of graded retraction in special scenarios.
Smart Images
Figure CN223952961U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of pneumatic actuator, concretely is a dustproof multistage cylinder. BACKGROUND
[0002] The cylinder refers to the cylindrical metal machine part that guides the piston to carry out linear reciprocating motion in the cylinder.
[0003] Air converts heat energy into mechanical energy by expansion in the engine cylinder; gas receives compression by the piston to increase pressure in the compressor cylinder.
[0004] Application field of the cylinder: printing (tension control), semiconductor (spot welder, chip grinding), automation control, robot, etc.
[0005] The current traditional cylinder has the following problems:
[0006] 1. The traditional two-stage cylinder is generally two gas ports, and the extension and retraction are completed at one time, which is limited in application scenarios requiring staged retraction.
[0007] 2. The traditional two-stage cylinder, when working, the extension and retraction element of the cylinder will attach dust, which will affect the extension and retraction work of the cylinder after long-term use. INVENTION CONTENT
[0008] The utility model aims to provide a dustproof multistage cylinder to solve the above problems existing in the prior art.
[0009] Technical scheme: a dustproof multistage cylinder, comprising:
[0010] A cylinder and a dustproof part connected with the cylinder.
[0011] The cylinder comprises:
[0012] A storage assembly comprising a storage cylinder, a storage front end cover and a storage rear end cover respectively arranged at both ends of the storage cylinder, and a storage front gas port and a storage rear gas port respectively opened on the storage front end cover and the storage rear end cover and communicated to the storage cylinder.
[0013] A first-stage assembly comprising a first-stage cylinder located in the storage cylinder and inserted into the storage front end cover, and a first-stage front end cover and a first-stage piston respectively arranged at both ends of the first-stage cylinder, and a piston gas port and a first-stage front gas port respectively opened on the first-stage piston and the first-stage front end cover and communicated to the first-stage cylinder.
[0014] A second-stage assembly comprising a second-stage piston adapted to the first-stage cylinder, and a second-stage rod body connected with the second-stage piston and inserted into the first-stage front end cover.
[0015] The utility model discloses a disposable extension to the air cylinder is completed through the design of the storage rear air port and the piston air port, and the work of step-by-step retraction to the first cylinder and the second rod body is completed through the design of the storage front air port and the first front air port, thereby avoiding that the multi-stage air cylinder is completed once in extension and retraction, and cannot be competent for special scene.
[0016] In further embodiments, the first piston is adapted to the storage cylinder.
[0017] In further embodiments, the dustproof part comprises:
[0018] The first dustproof structure is connected with the storage front end cover and abuts against the first cylinder;
[0019] The second dustproof structure is connected with the first front end cover and abuts against the second rod body.
[0020] The dustproof work to the first cylinder and the second rod body is completed through the design of the first dustproof structure and the second dustproof structure, when the first cylinder and the second rod body extend or retract, the dust is blocked into the storage front end cover and the first front end cover through the bristles, and the work of the air cylinder is avoided from being affected by the dust.
[0021] In further embodiments, the first dustproof structure and the second dustproof structure are two groups of dustproof units with the same structure, and each group comprises:
[0022] The dustproof fixed ring is connected with the shaft sleeve;
[0023] The dustproof movable ring is rotationally connected with the dustproof fixed ring, and the dustproof movable ring is installed with a lead screw sleeve and at least three groups of dustproof pieces;
[0024] At least three groups of dustproof pieces are designed, and the bristles of the three groups of dustproof pieces can form a dustproof wall around the periphery of the dustproof first cylinder and second rod body in the linkage of the three groups of dustproof pieces,
[0025] The shaft sleeve and the lead screw sleeve are inserted with an adjusting lead screw.
[0026] The adjusting lead screw is matched with the lead screw sleeve and the shaft sleeve;
[0027] The adjusting lead screw comprises a smooth shaft body and a lead screw shaft body, the lead screw shaft body is matched with the lead screw sleeve, the smooth shaft body is matched with the shaft sleeve, and the smooth shaft body is rotationally connected with the shaft sleeve.
[0028] In further embodiments, each group of dustproof pieces comprises a fixed rod connected with the dustproof movable ring, a swing arm sleeved on the fixed rod, a plurality of bristles installed on the swing arm, and a rubber ball embedded in the end of the swing arm.
[0029] By designing the marbles, the marbles can move with the primary cylinder and the secondary rod body, avoiding affecting the movement of the primary cylinder and the secondary rod body in the case of using other components or components with large friction.
[0030] In further embodiments, the dustproof fixed ring of the primary dustproof structure is connected with the storage front end cover, the marbles and the plurality of bristles of the primary dustproof structure abut against the primary cylinder;
[0031] The dustproof fixed ring of the secondary dustproof structure is connected with the primary front end cover, and the marbles and the plurality of bristles of the secondary dustproof structure abut against the secondary rod body.
[0032] Beneficial effects: The utility model discloses a dustproof multistage cylinder, the utility model discloses a one-time extension to the cylinder is completed through the design of storage rear air port and piston air port, and the primary cylinder and the secondary rod body are gradually retracted through the design of storage front air port and primary front air port, thereby avoiding that the multistage cylinder is completed once when extending and retracting, and cannot be competent for special scenes.
[0033] Meanwhile, the primary dustproof structure and the secondary dustproof structure are designed to complete the dustproof work of the primary cylinder and the secondary rod body, when the primary cylinder and the secondary rod body extend or retract, the dust is prevented from entering the storage front end cover and the primary front end cover through the bristle block, avoiding that the dust affects the work of the cylinder. DRAWINGS
[0034] Figure 1 It is the structure schematic diagram of the utility model.
[0035] Figure 2 It is the cylinder structure schematic diagram of the utility model.
[0036] Figure 3 It is the dustproof unit structure schematic diagram of the utility model.
[0037] The drawing mark is:
[0038] 1, cylinder; 111, storage rear end cover; 111A, storage rear air port; 112, storage cylinder; 113, storage front end cover; 113A, storage front air port;
[0039] 121, primary piston; 121A, piston air port; 122, primary cylinder; 123, primary front end cover; 123A, primary front air port;
[0040] 131, secondary piston; 132, secondary rod body;
[0041] 2, primary dustproof structure; 21, dustproof fixed ring; 211, shaft sleeve; 22, dustproof movable ring; 221, screw sleeve; 222, fixed rod; 223, swing arm; 224, sliding sleeve; 225, brush; 226, marble; 23, adjusting screw rod;
[0042] 3, secondary dustproof structure. DETAILED DESCRIPTION
[0043] The application relates to a dustproof multi-stage air cylinder, which is explained in detail through specific embodiments.
[0044] A dustproof multi-stage air cylinder comprises:
[0045] An air cylinder 1 and a dustproof part connected with the air cylinder 1.
[0046] The air cylinder 1 comprises:
[0047] A storage assembly comprising a storage cylinder 112 and a storage front end cover 113 and a storage rear end cover 111 arranged at two ends of the storage cylinder 112 respectively, the storage front end cover 113 and the storage rear end cover 111 are respectively provided with a storage front air port 113A and a storage rear air port 111A communicated into the storage cylinder 112.
[0048] A primary assembly comprising a primary cylinder 122 located in the storage cylinder 112 and inserted into the storage front end cover 113, and a primary front end cover 123 and a primary piston 121 arranged at two ends of the primary cylinder 122 respectively, the primary piston 121 and the primary front end cover 123 are respectively provided with a piston air port 121A and a primary front air port 123A communicated into the primary cylinder 122.
[0049] A secondary assembly comprising a secondary piston 131 matched with the primary cylinder 122, and a secondary rod body 132 connected with the secondary piston 131 and inserted into the primary front end cover 123.
[0050] The dustproof multi-stage air cylinder is characterized in that the storage rear air port 111A and the piston air port 121A are designed to complete one-time extension of the air cylinder 1, the storage front air port 113A and the primary front air port 123A are designed to complete step-by-step retraction of the primary cylinder 122 and the secondary rod body 132, thereby avoiding that the multi-stage air cylinder 1 is one-time completed in extension and retraction and cannot perform special scenes.
[0051] The primary piston 121 is matched with the storage cylinder 112.
[0052] The dustproof part comprises:
[0053] A primary dustproof structure 2 connected with the storage front end cover 113 and abutting against the primary cylinder 122.
[0054] The secondary dustproof structure 3 is connected with the primary front end cover 123 and abuts against the secondary rod body 132.
[0055] The dustproof work of the primary cylinder 122 and the secondary rod body 132 is completed by designing the primary dustproof structure 2 and the secondary dustproof structure 3. When the primary cylinder 122 and the secondary rod body 132 are extended or retracted, the dust is blocked from entering the storage front end cover 113 and the primary front end cover 123 by the bristles 225, so as to avoid the influence of dust on the work of the air cylinder 1.
[0056] The primary dustproof structure 2 and the secondary dustproof structure 3 are two groups of dustproof units with the same structure, and each group comprises:
[0057] The dustproof fixed ring 21 is connected with the shaft sleeve 211;
[0058] The dustproof movable ring 22 is rotationally connected with the dustproof fixed ring 21, and the dustproof movable ring 22 is installed with the lead screw sleeve 221 and at least three groups of dustproof pieces;
[0059] At least three groups of dustproof pieces are designed. In the linkage of the three groups of dustproof pieces, the bristles 225 of the three groups of dustproof pieces can form a dustproof wall around the periphery of the dustproof primary cylinder 122 and the secondary rod body 132. In the linkage of the three groups of dustproof pieces, the situation that any one group of dustproof pieces is not abutted in place is avoided,
[0060] The shaft sleeve 211 and the lead screw sleeve 221 are inserted with the adjusting lead screw 23.
[0061] The adjusting lead screw 23 is adapted to the lead screw sleeve 221 and the shaft sleeve 211.
[0062] The adjusting lead screw 23 comprises a smooth shaft body and a lead screw shaft body. The lead screw shaft body is adapted to the lead screw sleeve 221, the smooth shaft body is adapted to the shaft sleeve 211, and the smooth shaft body is rotationally connected with the shaft sleeve 211.
[0063] Each group of dustproof pieces comprises a fixed rod 222 connected with the dustproof movable ring 22, a swing arm 223 sleeved on the fixed rod 222, a plurality of bristles 225 installed on the swing arm 223, and a marble 226 embedded in the end of the swing arm 223.
[0064] The marble 226 is designed so that the marble 226 can move with the primary cylinder 122 and the secondary rod body 132, avoiding affecting the movement of the primary cylinder 122 and the secondary rod body 132 in the case of using other components or components with large friction.
[0065] The dustproof fixed ring 21 of the primary dustproof structure 2 is connected with the receiving front end cover 113, the elastic ball 226 and the plurality of brush hairs 225 of the primary dustproof structure 2 abut against the primary cylinder barrel 122;
[0066] The dustproof fixed ring 21 of the secondary dustproof structure 3 is connected with the primary front end cover 123, the elastic ball 226 and the plurality of brush hairs 225 of the secondary dustproof structure 3 abut against the secondary rod body 132.
[0067] Working principle description: when the air cylinder 1 works, the primary piston 121 and the secondary piston 131 are driven to move when the receiving rear air port 111A is ventilated when the air cylinder 1 extends;
[0068] When the air cylinder 1 retracts, the secondary rod body 132 needs to retract, the primary front air port 123A is inflated, the secondary piston 131 is driven to retract, the receiving front air port 113A is inflated when the primary cylinder barrel 122 needs to retract, the primary piston 121 is driven to retract, and the retraction work of the primary cylinder barrel 122 is completed;
[0069] When the dustproof unit works, the adjusting screw rod 23 is rotated, the dustproof movable ring 22 is rotated, the swing arm 223 is driven to move along the sliding sleeve 224, the elastic ball 226 abuts against the primary cylinder barrel 122 or the secondary rod body 132, when the primary cylinder barrel 122 or the secondary rod body 132 extends or retracts, the dust on the primary cylinder barrel 122 and the secondary rod body 132 is brushed away under the influence of the brush hair 225.
[0070] The preferred embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the specific details in the above embodiments, within the technical concept range of the utility model, the technical scheme of the utility model can be variously transformed, and these equivalent transformations all belong to the protection range of the utility model.
Claims
1. A dustproof multi-stage cylinder, comprising: a cylinder and a dustproof part connected with the cylinder; characterized in that the cylinder comprises: a receiving assembly comprising a receiving cylinder, a receiving front end cover and a receiving rear end cover arranged at two ends of the receiving cylinder respectively, and a receiving front air port and a receiving rear air port respectively formed on the receiving front end cover and the receiving rear end cover and communicated with the receiving cylinder; a first-stage assembly comprising a first-stage cylinder located in the receiving cylinder and inserted into the receiving front end cover, and a first-stage front end cover and a first-stage piston arranged at two ends of the first-stage cylinder respectively, and a piston air port and a first-stage front air port respectively formed on the first-stage piston and the first-stage front end cover and communicated with the first-stage cylinder; a second-stage assembly comprising a second-stage piston matched with the first-stage cylinder, and a second-stage rod connected with the second-stage piston and inserted into the first-stage front end cover.
2. The dustproof multi-stage cylinder according to claim 1, characterized in that: The first-stage piston is matched with the receiving cylinder.
3. The dustproof multi-stage cylinder according to claim 1, characterized in that: The dustproof part comprises: a first-stage dustproof structure connected with the receiving front end cover and abutting against the first-stage cylinder; a second-stage dustproof structure connected with the first-stage front end cover and abutting against the second-stage rod.
4. The dustproof multi-stage cylinder according to claim 3, characterized in that: The first-stage dustproof structure and the second-stage dustproof structure are two groups of dustproof units with the same structure, each group comprising: a dustproof fixed ring, on which a shaft sleeve is connected; a dustproof movable ring rotationally connected with the dustproof fixed ring, on which a screw sleeve and at least three groups of dustproof pieces are mounted; an adjusting screw rod inserted into the shaft sleeve and the screw sleeve.
5. The dustproof multi-stage cylinder according to claim 4, characterized in that: Each group of dustproof pieces comprises a fixed rod connected with the dustproof movable ring, a swing arm sleeved on the fixed rod, a plurality of bristles mounted on the swing arm, and a marble embedded at an end of the swing arm.
6. The dust-proof multi-stage cylinder according to claim 4, characterized in that: The dustproof fixed ring of the first-stage dustproof structure is connected with the receiving front end cover, and the marble and the plurality of bristles of the first-stage dustproof structure abut against the first-stage cylinder. The dustproof fixed ring of the second-stage dustproof structure is connected with the first-stage front end cover, and the marble and the plurality of bristles of the second-stage dustproof structure abut against the second-stage rod.